31 std::ostream& operator<<(std::ostream& os, const hidl_vec<T>& vec) {  in operator <<()  argument
32     os << "{ ";  in operator <<()
34         for (size_t i = 0; i < vec.size() - 1; ++i) os << vec[i] << ", ";  in operator <<()
35         os << vec[vec.size() - 1];  in operator <<()
37     os << " }";  in operator <<()
38     return os;  in operator <<()
41 std::ostream& operator<<(std::ostream& os, const hidl_vec<uint8_t>& vec) {  in operator <<()  argument
42     std::ios_base::fmtflags flags(os.flags());  in operator <<()
43     os << std::setw(2) << std::setfill('0') << std::hex;  in operator <<()
44     for (uint8_t c : vec) os << static_cast<int>(c);  in operator <<()
45     os.flags(flags);  in operator <<()
46     return os;  in operator <<()
50 std::ostream& operator<<(std::ostream& os, const hidl_array<uint8_t, N>& vec) {  in operator <<()  argument
51     std::ios_base::fmtflags flags(os.flags());  in operator <<()
52     os << std::setw(2) << std::setfill('0') << std::hex;  in operator <<()
53     for (size_t i = 0; i < N; ++i) os << static_cast<int>(vec[i]);  in operator <<()
54     os.flags(flags);  in operator <<()
55     return os;  in operator <<()
62 std::ostream& operator<<(std::ostream& os, const HmacSharingParameters& params) {  in operator <<()  argument
65     os << "(seed: " << params.seed << ", nonce: " << params.nonce << ')';  in operator <<()
66     return os;  in operator <<()
76 std::ostream& operator<<(std::ostream& os, const Keymaster& keymaster) {  in operator <<()  argument
78     os << version.keymasterName << " from " << version.authorName  in operator <<()
81     return os;  in operator <<()